No. Carrot2 can add clustering of search results to an existing search engine. You can use an Open Source project called Nutch to crawl your website. Nutch has a Carrot2-based search clustering plugin, so you'll get all crawling, searching and clustering in one piece. If you need help with any of these, please contact us.
Is it like only nutch can crawl our own website, (if we create one)? Because for clusty they have one more section called "add your site" where they have add ur site to this particular one and submit your site,add ur url etc.. wat options can i give there?Is there anything particular for carrot2. It will be really helpful if u answer this question as soon as possible.